using Microsoft.EntityFrameworkCore; namespace Work29 { public class Work29Context : DbContext { public Work29Context() { Database.EnsureCreated(); } public DbSet Users { get; set; } public DbSet Tasks { get; set; } public DbSet StatusTasks { get; set; } protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) { optionsBuilder.UseLazyLoadingProxies(); optionsBuilder.UseSqlServer("Data Source=(localdb)\\mssqllocaldb; Initial Catalog=AppDb;Trusted_Connection=True;"); } protected override void OnModelCreating(ModelBuilder modelBuilder) { modelBuilder.Entity() .HasOne(m => m.UserCreated) .WithMany(t => t.UserCreateds) .HasForeignKey(m => m.UserCreatedId) .OnDelete(DeleteBehavior.Restrict); modelBuilder.Entity() .HasOne(m => m.UserAccepted) .WithMany(t => t.UserAccepteds) .HasForeignKey(m => m.UserAcceptedId) .OnDelete(DeleteBehavior.Restrict); modelBuilder.Entity() .HasOne(m => m.StatusTask) .WithMany(t => t.Tasks) .HasForeignKey(m => m.StatusTaskId) .OnDelete(DeleteBehavior.Restrict); } } }